中文关键词中国二噁英大气网格化排放清单排放特征 英文关键词Chinadioxinatmosphericgriddedemission inventoryemission characteristics

作者	单位	E-mail
陈露露	兰州大学资源环境学院甘肃省环境污染预警与控制重点实验室, 兰州 730000	llchen18@lzu.edu.cn
黄韬	兰州大学资源环境学院甘肃省环境污染预警与控制重点实验室, 兰州 730000	huangt@lzu.edu.cn
陈凯杰	兰州大学资源环境学院甘肃省环境污染预警与控制重点实验室, 兰州 730000
宋世杰	兰州大学资源环境学院甘肃省环境污染预警与控制重点实验室, 兰州 730000
高宏	兰州大学资源环境学院甘肃省环境污染预警与控制重点实验室, 兰州 730000
马建民	兰州大学资源环境学院甘肃省环境污染预警与控制重点实验室, 兰州 730000 北京大学城市与环境学院地表过程分析与模拟教育部重点实验室, 北京 100871

中文摘要 PCDD/Fs排放清单是进行PCDD/Fs控制、环境归趋行为研究和健康风险评估的基础.本研究基于我国官方发布的2004年各行业PCDD/Fs排放清单的基础上，结合联合国环境规划署（UNEP）2013年发布的最新《鉴别及量化PCDD/Fs类排放标准工具包》中PCDD/Fs排放因子，估算了我国2016年各省各行业PCDD/Fs大气排放量，并结合各行业网格化指代数据，建立了我国PCDD/Fs大气网格化排放清单（1/4°×1/4°经纬度），最后利用蒙特卡洛模型分析了清单的不确定性.结果表明，2016年我国PCDD/Fs大气排放量（以TEQ计，下同）为10366 g，与2004年相比增加了约2倍.从排放行业来看，金属生产是我国大气中PCDD/Fs的主要来源，2016年排放量为5333 g，其次为垃圾焚烧（2469 g），供热和发电（1290 g）和矿物产品生产（933 g），以上4个行业排放量占我国PCDD/Fs大气总排放的97%.从空间来看，我国大气PCDD/Fs排放主要集中在京津冀、长三角和珠三角地区，其中京津冀和长三角地区PCDD/Fs排放主要来自钢铁生产，珠三角地区主要来自垃圾焚烧. 英文摘要 PCDD/Fs emission inventory is the basis for PCDD/Fs control, research on environmental fate behavior, and health risk assessment. In the present study, based on officially released PCDD/Fs emissions inventory for each industry in China in 2004, we estimated atmospheric PCDD/Fs emissions by sector in various provinces in 2016 by combining the emission intensity in the "Identification and Quantification of PCDD/Fs Emission Standards Toolkit" released by the United Nations Environment Program (UNEP) in 2013. Subsequently, using different gridding data for various sectors as surrogate data, we established atmospheric gridded emission inventory (1/4°×1/4° latitude by longitude) for PCDD/Fs in China. Finally, the uncertainty of PCDD/Fs emission inventory was analyzed. Results show that the atmospheric emissions of PCDD/Fs in China in 2016 were 10366 g, which was about two times higher than that in 2004. From the perspective of the emission sector, metal smelting is the largest emitter of PCDD/Fs in China, which released 5333 g, followed by waste incineration (2469 g), heating and power generation (1290 g), and mineral production (933 g). These four sectors accounted for 97% of China's total PCDD/Fs emissions. In spatial terms, China's atmospheric PCDD/Fs emissions are mainly concentrated in the Beijing-Tianjin-Hebei, Yangtze River Delta, and Pearl River Delta regions. PCDD/Fs emissions from the Beijing-Tianjin-Hebei and Yangtze River Delta regions originate mainly from steel smelting, and that from the Pearl River Delta region is mainly due to waste incineration.

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